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Arthur
Same thing happens to me. Perhaps something like:
Select = Param("pd,1=9,2=21",1,1,2,1);
Pd = iif(Select==1,9,21);
Andrew
--- In amibroker@xxxxxxxxxxxxxxx, Arthur Sawilejskij <arthur@xxxx>
wrote:
> I have a chart with 3 EMA's plotted - a 3 day and then a 9 and 21
day that
> I use in a simple MA crossover setup.
>
> I plot buy/signals on the chart based on crossovers and want to
use the
> param function to be able to simply alternate between the 9 and 21
EMA to
> see how it affects the plotted buy/sell signals.
>
> I only want the two steps - 9 and 21 - so I have the line
>
> pd = Param("pd", 9,9,21,12);
>
> But when I click on the param window to move from the default 9
and expect
> it to go to 21 - it instead goes to 12 - and then when I click
back - it
> goes to zero and the chart display naturally goes al strange.
>
> I've obviously got something terrible wrong - any ideas?
>
> Arthur
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